Oh, hello my good friend.  I am glad you are back for more work.  I have a     
very special request to ask of you.  It is rumored that a special substance    
known as the Swamp Incense grows in the lands South-East of here.  Its aroma   
is said to protect those who use it against any evil spirits.  Bring me back   
the incense and I'll give you 10000 coins right now, plus more when finished